Alex Zhang Hungtai (born September 4, 1980, Taipei), known by his stage name Dirty Beaches, is a Taiwanese-born Canadian musician based in Montreal, Quebec.

Dirty Beaches released a number of EPs and instrumental-focused albums on cassette-only labels, before releasing the full-length Badlands in March 2011. Badlands was subsequently nominated as a long listed nominee for the 2011 Polaris Music Prize. Dirty Beaches has also released singles including "True Blue"/"Sweet 17," "Lord Knows Best" and "Lone Runner," as well as videos, many of them directed by Zhang himself. Zhang has also recorded several original film soundtracks, such as for the documentary Water Park, by Evan Prosofsky.